Two different rivers have drops that are the same height. In river A, this section of the river is a waterfall. In river B, this section has a hydroelectric dam. In what way does the energy differ between the drops in the two rivers?(1 point)

Question

Two different rivers have drops that are the same height. In river A, this section of the river is a waterfall. In river B, this section has a hydroelectric dam. In what way does the energy differ between the drops in the two rivers?(1 point)

Responses

The potential energy of the water would be greater at the top of the drop in river A than in river B.
The potential energy of the water would be greater at the top of the drop in river A than in river B.

The potential energy of the water would be less at the top of the drop in river A than in river B.
The potential energy of the water would be less at the top of the drop in river A than in river B.

The kinetic energy of the water would be less at the bottom of the drop in river A than in river B.
The kinetic energy of the water would be less at the bottom of the drop in river A than in river B.

The kinetic energy of the water would be greater at the bottom of the drop in river A than in river B.

Answer 1

The kinetic energy of the water would be greater at the bottom of the drop in river A than in river B. This is because in a waterfall like in river A, the water falls freely and gains kinetic energy as it falls, whereas in a hydroelectric dam like in river B, the potential energy of the water is converted into electrical energy through the turbines, reducing the kinetic energy of the water at the bottom of the drop.